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Q. I’m editing a biography of a WWII pilot. Would bomber training and fighter training be capitalized because they are referring to specific types of planes?
A. Fighters and bombers are not actually specific types of planes; they are general categories. Specific types of fighters would be (for example) the Grumman F-14 Tomcat, the McDonnell Douglas F-15 Eagle, and the Lockheed Martin F-22 Raptor. You can find a list of WWII fighters and bombers here.